STIEBEL ELTRON EAC 5 Quick Guide - Operation Operation Instruction

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OVERVIEW

2 | EAC 5 www.stiebel-eltron.com

Contents

Overview ................................................ 2

User Interface ........................................ 4

Idle Screen ............................................. 5

Menu ...................................................... 6

Operation .................................................. 8

Information .............................................. 13

Setup ...................................................... 15

Guarantee, environment and recycling 18

Safety and Installation Instructions ...... 19

Overview

The charge controller EAC 5 has been designed for use in

heating systems with electrical storage heaters.

The EAC 5 implements the basic functions of a central

control unit as defined in the standard DIN EN 50350:

 Calculate the heat demand based on the outdoor tem-

perature,

 Process the charge release signals of the distribution

network operator (with/without time function),

 Output the charge release signal and the target charge

rate to the storage heaters.

As opposed to a central control unit according to the

standard, the EAC 5 implements additional comfort

functions to meet the preferences of individual users. This

includes e.g. a week program for a timed control of the tar-

get charge rate, a holiday program for vacation periods and

the capability to connect to an internet-based server; see a

subsequent chapter.

OVERVIEW

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ENGLISH

Complementary devices

Because of its TGN bus connectivity the charge controller

EAC5 is compatible to the "Electrical Energy Storage Heat-

ing" family of devices made by tekmar Regelsysteme GmbH.

Additional information about the available devices can be

found at www.tekmar.de.

Further documentation

• Operation and Installation Instructions EAC 5

(main document, online available as pdf file at

www.stiebel-eltron.com)

USER INTERFACE

4 | EAC 5 www.stiebel-eltron.com

User Interface

The four function keys at the lower edge of the touch screen

can be operated with a finger or with the soft end of the in-

cluded pencil. The rest of the screen has no touch function.

The adjacent list shows the potential functions of the four

keys.

After pressing the

Menu

key various menu items are availa-

ble. The Plus and Minus keys (+ and -) are repeating keys if

depressed for a longer time.

Some input values can be entered through a decimal key-

pad. In this case, the touch functionality of the display is ex-

tended to cover all keys of the decimal keypad.

Menu

forward to menu

>>

one menu level up

<<

one menu level down

>

forward (selection of multiple choice

parameter values)

<

backward (selection of multiple choice

parameter values)



one row down



one row up

+

increase value

-

decrease value

Chng

change entry

Save

save entry

Add

add entry

Del

delete entry

Edit

edit entry

Act

activate entry

Deact

deactivate entry

Esc

abort

0..9

decimal keypad

Should the menu get no response on a data query the dis-

play will show the string "~~~" instead of the parameter val-

ue.

IDLE SCREEN

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Idle Screen

The idle screen can display the following information, depending on the configuration of the controller:

 date and time

 current state of the installation

 charging: effective outdoor temperature, target charge rate

 selected operating mode, effective heat level

 status of the inputs LF (charge release), LZ (additional charge release) and LX (multi-function),

if needed including runtime in hours for forward control with time function or for backward control

alternatively in the last row with activated gateway:

 status of the connection between internet gateway and tekmar TAV server

(value ~~~ indicates a missing connection to the gateway)

Example: Idle screen of the application

Self-learning

MENU

6 | EAC 5 www.stiebel-eltron.com

Menu

The menu branches

Operation

,

Information

and

Setup

are dedicated to the user. The branch

Operation

contains menu items

for settings which apply to the living comfort and will possibly be used more frequently. The

Information

branch shows in-

formation about the state of the heating installation. The

Setup

branch contains parameters which are used rather infre-

quently.

Not every menu item is relevant and visible in every application. The visibility is marked in the column

Option

. The individual

menu items are explained in detail subsequent to the overview, for this see the references in the column

Page

.

Level 1

Level 2

Level 3

Option

Page

Operation

Operating mode

8

Heat level manual

9

Active week program

9

Week program

Week program 1

11

Week program 2

Week program 3

Week program 4

Holiday program

Start of holiday

12

End of holiday

Heat level holiday

Information

System state

Target rate of charge as per heat demand

13

Runtime

C

13

Total release duration per day

S

13

Server

Connection status

G

13

Gateway ID

13

MENU

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Level 1

Level 2

Level 3

Option

Page

Registration TAN

14

Set passwords

Set level 1

14

Set level 2

Set level 3

Setup

Living comfort

Substitute temperature

15

Use of fan

S

15

Runtime

C

15

Intensity daytime charge

C

15

Date/time

16

Type of summertime

17

Language

16

Display

Contrast

17

Brightness menu

17

Brightness idle

17

Installer

For the installer only

-

Options:

C Application Classic

S Application Self-learning

G Internet gateway

MENU: OPERATION

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Operation

Operating mode

Operation

operating modes are available:

Standby: Frost protection only

Manual: Heat level manually adjustable on the controller from 1.0 to 5.0 and frost protection

Automatic: Heat level is automatically time-controlled by the system as per active week program and holiday program,

respectively.

In the factory setting for a self-learning charging model the charging is done in the operating mode "Automatic" with a cor-

responding week program (factory setting: program 1, heat level 1 from 22.00 to 06.00 h and heat level 3 from 06.00 to 22.00

h). This ensures a self-learning optimisation also for release times of 8+0 or 8+2 and you achieve a corresponding night-time

set-back .

If the "Classic" charging model has been selected, the operating mode should be set to "Manual".

How to select the operating mode on the controller:

1. Select

Menu

>

Operation

>

Operating mode

.

2. Press

Chng

.

3.

Select the desired operating mode using the

Plus

or

Minus

keys (+ or -).

4. Press

Save

.

 The new operating mode is made effective.

MENU: OPERATION

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Heat level manual

Operation

Heat level manual is used to set the desired target room temperature in the operating mode "Manual". The heat level can be

set to any value between 1.0 and 5.0 or to frost protection. In a normal, properly tuned installation a heat level of 3.0 results in

a target room temperature of 20 °C.

Unless the parameters of the target room temperature have been defined differently by the installer, an integer difference in

the heat level (e.g. between 3.0 and 4.0) corresponds to a temperature difference of 2 K. For frost protection, a target room

temperature of 10 °C is defined in the factory settings.

How to set the heat level on the controller:

1. Select

Menu > Operation > Heat level manual

.

2. Press

Chng

.

3. Set the desired heat level using the

Plus

or

Minus

keys (+ or -).

4. Press

Save

.

 The new heat level is made effective.

Note: In heating installations with electrical storage heaters, a week program for charging is reasonably applicable only if the

charging shall be reduced for entire days within a week. Examples are weekend homes which should get the normal charge

only from Friday to Sunday, or offices where the charging should be reduced from Friday evening to Sunday evening.

MENU: OPERATION

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Active week program

Operation

Selection of the active week program for the automatic heat level adjustment through time and day of week. A week pro-

gram allows to define which heat level should apply at which time within the week. Week program 1 is defined as the factory

setting. The four available week programs may be modified as required. Times can be changed in steps of 15 minutes.

A fully programmed entry consists of:

 Switch time: point in time at which the change to the new operating mode shall occur (e.g. 06:00)

 Switch action: value of the new heat level

 Day assignment: definition of the days for which this entry shall be effective (e.g. Mon, Tue, Thu, Fri)

How to select the active week program:

1. Select

Menu > Operation > Active week program

.

2. Press

Chng

.

3. Select the desired week program using the

Plus

or

Minus

keys (+ or -).

4. Press

Save

.

 The new week program is made effective.

MENU: OPERATION

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Week program

Operation

Individual modifications of the time values for the heat level in the course of the week:

1. Select

Menu > Operation > Week program

.

2.

Select the week program to be modified using the

Plus

or

Minus

keys (+ or -).

3.

Press >>.

4. Select the entry to be modified, e.g. Entry 2, using the

Plus

or

Minus

keys (+ or -).

5. Press

Act

to update the week program.

6. Press

Edit

.

7.

Carry out the desired modifications of time and heat level using the

Plus

or

Minus

keys

(+ or -) and the

Arrow

key >.

8. Carry out the desired modifications of the weekdays using the

Plus

or

Minus

keys (+ or -) and the

Arrow

key >. The

Plus

key activates the switch point on this day (the initial letter of the weekday is shown). The

Minus

key de-activates the

switch point on this day; instead of the letter a is shown.

9. Press

Save

.

 The modifications of the week program are made effective.

To add a new entry to a week program, select

Add

in step 6. To delete an entry from a week program, select

Del

in step 6.

Steps 7 and 8 are treated accordingly.

MENU: OPERATION

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Holiday program

Operation

The holiday program allows to define a special heat level for a period of absence. The settings

include start of holiday, end of holiday and desired heat level.

The holiday program overrides the active week program, i.e. it puts the running week pro-

gram out of operation. After the period of absence, the week program that was previously in

use is re-activated.

How to set up the holiday function on the controller:

1. Select

Menu > Operation > Holiday program

.

2. The Start of holiday screen is displayed.

3. Press

Chng

and set the desired start point using the

Arrow

key > and the

Plus

and

Minus

keys (+ und -). Press

Save

.

4. Press

Arrow down

. The End of holiday screen is displayed.

5. Press

Chng

and set the desired end point using the

Arrow

key > and the

Plus

and

Minus

keys (+ und -). Press

Save

.

6. Press

Arrow down

. The Heat level holiday screen is displayed.

7. Press

Chng

and set the desired control mode for the holiday period using the

Plus

and

Minus

keys (+ und -).

8. Press

Save

.

 Now, the holiday function is automatically activated. At the selected start point in

time, the desired operating mode is activated and will be de-activated again at the se-

lected end point in time.

MENU: OPERATION

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Note: To delete an established holiday function or terminate it ahead of schedule the End of holiday must be set to a point of

time in the past.

Information

Target charge rate as per heat demand

Information > System state

Indication of the internally calculated target charge rate according to the heating characteristic, the heat demand factor, the

currently adjusted heat level, and, if required, the control value in the time table requested by the distribution network opera-

tor. (Target charge rate output indication see idle screen).

Runtime

Information > System state (Classic charging model only)

Indication of hours passed since start of night time release in the classic charging models Forward control or Backward con-

trol.

Total release duration per day

Information > System state (Self-learning charging model only)

Indication of hours registered by the release memory of the self-learning charging model as release duration within the last

24 hours.

Connection status

Information > Server (activated internet gateway only)

Indication of the connection status between gateway and tekmar TAV server. The value ~~~ indicates a missing connection

between controller and gateway 1880/(W)LAN-GWI or a missing gateway device.

MENU: INFORMATION

14 | EAC 5 www.stiebel-eltron.com

See also

Internet Gateway Operation and Installation Instructions

.

Set passwords

Information > Set passwords

Setting of passwords for the individual menu levels (see

Password System

in the main document).

MENU: SETUP

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Setup

Substitute temperature

Setup > Living comfort

Adjustment of the outdoor temperature value which is used to calculate the target charge rate in case of failure. This setting

enables to manually control the heat demand of the system if the outdoor temperature sensor fails or the weather report is

not available.

Factory setting: <set automatically if outdoor temperature value available>, setting range: -25°C .. +25°C

Use of fan

Setup > Living comfort (Self-learning charging model only)

Adjustment of the desired intensity of the use of the fan for storage heaters. This value has an influence on the charging in-

tensity in case of self-learning charging. The higher the setting for the use of the fan is, the lower the charging is for the same

heat demand. Thus the stored energy is made better use of.

Factory setting: as required, setting options: rarely, as required, frequently

Runtime

Setup > Living comfort (Classic charging model only)

Setting of the runtime in hours after the main charge release for a faster start of the classic charging models after an extended

period without power. The required entry is the number of hours that have passed since the last start of the night time re-

lease. Example: Data entry at 11:00 in the morning with start of night time release at 22:00  13 hours.

Factory setting: <set automatically by signal "Charge release">, setting range: 0 h .. 23 h

MENU: SETUP

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Intensity daytime charge

Setup > Living comfort (Classic charging model only)

Adjustment of the intensity of the daytime additional charge in the classic charging models Forward control with time and

Backward control.

Factory setting: 85%, setting range: 0% .. 100%

Date/time

Setup > Date/time

The clock is used to control the time dependency of the operating modes and the week programs. With an active internet

connection the unit obtains date and time from the internet. If the device is started up for the first time or has been discon-

nected from the power for an extended period of time it is essential to verify that date and time have been set correctly.

(Short power outages up to a day are covered by the power reserve.)

How to set date and time:

1. Select

Menu > Setup > Date/time

.

2. Press

Chng

.

3.

Select the desired parameters one after the other using the

Arrow

keys (< or >), until

they flash and thus are active, and then modify them using the

Plus

or

Minus

keys (+ or -).

4. When all parameters are adjusted press

Save

to save the changes.

 The new date and time are made effective.

MENU: SETUP

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Type of summertime

Setup > Date/time

Selection of the automatic summertime changeover.

Factory setting: Europe, setting options: Off | Europe

Language

Setup > Language

Selection of the menu language.

Factory setting: German, setting options: German | English | French | Dutch

Contrast

Setup > Display

Adjustment of the display contrast.

Brightness menu

Setup > Display

Adjustment of the display brightness when showing the menu.

Brightness idle

Setup > Display

Adjustment of the display brightness when showing the idle screen.

GUARANTEE | ENVIRONMENT AND RECYCLING

18 | EAC 5 www.stiebel-eltron.com

Guarantee, environment and recycling

Guarantee

The guarantee conditions of our German companies do not

apply to appliances acquired outside of Germany. In coun-

tries where our subsidiaries sell our products a guarantee

can only be issued by those subsidiaries. Such guarantee is

only granted if the subsidiary has issued its own terms of

guarantee. No other guarantee will be granted.

We shall not provide any guarantee for appliances acquired

in countries where we have no subsidiary to sell our prod-

ucts. This will not affect warranties issued by any importers.

Environment and recycling

We would ask you to help protect the environment. After

use, dispose of the various materials in accordance with na-

tional regulations.

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Tel. 05531 702-0 | Fax 05531 702-480

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9535

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STIEBEL ELTRON EAC 5 Quick Guide - Operation Operation Instruction

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